Processby

Storky87

This plugin adds a question and answer page in WordPress. 
They can be displayed either list or divided into categories. 
Display all the questions on the page, or each question will have its own page with the answer.

WP Question & Answer

Adds a question and answer page in WordPress.

Evgeniy Kutsenko

This Plugin allows you to include a simple Textbox through which your site visitors can ask you short questions. 
You can answer them through the backend. 
This plugin is not a dependent version of the plugin <a href="https://wordpress.org/plugins/askme/" rel="ugc">Ask Me</a>.
See it in action at: (<a href="http://wp.starcoms.ru/qa-plugin/" rel="nofollow ugc">http://wp.starcoms.ru/qa-plugin/</a>)

Simple Q&A

Simple Plugin to let your users ask questions.

WP Question & Answer vs Simple Q&A